Sewing-machine for auilting



`(No Modem 2 Sheets-Sheet 1. F. N. GOTTLE.

SEWING MACHINE PQR QUILTING, &0.

10,254,926 Patented Mar. 14,1882.V

l UNITED STATES PATENT OFFICE.

FREEMAN N. CQT'ILE, OF WALPOLE, MASSACHUSETTS.

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SPECIFICATION forming part of Letters Patent No. 254,926, dated March 14, 1882.l

Application lcd May 28,1881. Renewed January 23, 1882. (No model.)

To all Awhom it may concern:

Be it known that I, FREEMAN N. CoTCrLE, .of Walpole, county of Norfolk, State of Massachusetts, have invented an Improvementin Sewing-Machines, of which the following description, in connection with the accompanying drawings, is a specification.

This invention in sewing-machines has for its object the production of a machine for uniting together layers of fabric and waddiug in the manufacture of coverlets, quilts, carpetlnings, and that class of materialwherein itis desired/to make stitches only at intervals to tie, as it were, the fabric or layers of material together somewhat after `the manner of tufting coverlets and quilts.

In the practice of this my invention I have taken the Willcox et Gibbs sewing-machine, removed from it its usual feeding mechanism, and connected with the driving-wheel on the hooked shaft a crank-pin to operate a link and reciprocate a pawl-carrier, so as to operate intermittingly, and for varied distances, a pair of rollers, which are made to feed the material in which the thread is to be tied or knotted at intervals. Beneath the throat-plate ot' the sewing-machine, and in line with the plane ot' rotation of the rotating hook, I have placed a thread-cutter, which at proper times is instrumental in cutting the thread which has been tied to form a knot in the material, and also beneath the plate I have added athread-holder to hold that end of the thread extending to the eye of the needle after it has been severed by the cutter.

Figure 1 represents in top view a sufficient portion of a sewing-machine to illustrate my present invention; Fig. 2, a rear elevation of a Willcox 85 Gibbs sewing-machine with the connected parts employed to actu-ate the feeding mechanism. Fig. 3 is a horizontal sect-ion of Fig. l on the line x x. Fig. 4 is a separate view of the ratchet-disk. Fig. 5 represents apiece of quilt containing stitches substantially such as it is intended to make by this machine, and Fig. 6 is a detail showing` the thread-loop as being drawn against the edge of the cutter during the long-feed stroke.

Referring to the drawings, A represents a well-knownWillcox du Gibbs sewing-machine, it having an eye-pointed needle, n, and rotating hook a2 to form the stitch, all as usual.

ing on a shaft, c2, which is driven positively,'

whereas the roller c is driven by means of friction from the roller c. y The shaft c2 ofthe roller c has upon ita compound ratchet, composed ot' a ratchet-wheel, c, fixed upon the outer end of the shaft, a smaller' ratchet, e2, fixed upon the said shaft near the ratchet c, and ot' an intermediate pawl-controlling ratohetdisk, c?, jprovided with a pawl, c, held down in engagement with the smaller ratchet-wheel e3 by the spring f, the pawl c4 preventing backward movement of the said ratchet-disk as the main pawl t' is moved backward. This intermediate ratchetdisk, c3, is loose upon the shaft c2, and between its outer side and the ratchetc the said disk has connected with ita groovcd pulley, g, to receive a cord or band, h, extended over the same and subjected to a sufficient amount of tension to act asa check for and to prevent rotation ofthe ratchet-disk c3 when not moved positively, or for agrcater distance than moved positively by the pawl t, which is connected with the pawl-carrierj, pivoted upon-the end of the shaft c2. The pawl t' is broad enough to extend across both the ratchet c and the controlling-disk e3, and is held down on the pawlcontrolling disk bythe spring lr. The pawlcarrier derives its motion from the crank-pin b through the link l.

Referring to Figs. 2 and 3, it will be seen that the ratchet-disk c3 is of greater diameter than thc ratchet c, and that the notches ini the said disk c3 to be entered by the pawl arc of differentdepths,and are located at various distances t ICO These four descents of the needle, with its needle-thread being engaged at each descent by the looper, enable the looper to knot or tie the thread, and then, as the looper yet holds the thread, a long feed of the fabric or quilt is caused by the rollers, which so draw the thread extending from the looper to the fabric as to press the loop ofthe thread held by the looper against the edge of the cutter m, (see Fig. 6,) severing the thread between the needle and looper and fabric or quilt. The end ofthe needle-thread, extending through and beyondthe eye of the needle, will be caught, as the thread is severed, between the forked end of thev thread-holder n, composed oftwo pieces of wire twisted together, so as to form a tapering or Vshaped fork just at the rear ofthe long slot 20 in the throat-plate, the sail thread-holder holding the end of the needle-thread below the cloth-plate until the next stitch is to be made.

To producea feeding movement of this kind the pawl t' will be supposed to have just engaged the notch 2 of the disk c3 (see Fig. 4) and have moved the feeding device for the long feed, and the needle immediately thereafter descended through the material. Then while the needle remains in the material the pawl t' is carried back along over the edge of the ratchet-disk c3 and falls into the notch '3, at which time the needle has nearly risen; but said notch, being of less depth than the notch 2, does not permit the pawl to engage the ratchet e, and consequently the said pawl in its forward movement, moves only the controlling-disk, and just after the end ofthe forward stroke of the pawl the needle again descends in the same spot. The next tooth, 4of the 1atchet-diskis\'ery close to the shallow ratchettooth 3, and as the pawl is drawn back it passes the said notch, rides along on the high part 5 of the controlling-disk, while the needle is in the fabric and is partially rising, and then thepawl is moved forward, engaging the notch 4. of the ratchet-disk, which is deep enough to permit the pawl to also engage the ratchet e, and during the further slight forward movement of the pawl and ratchet-disk e3 the ratchet eis also moved to make the short feed of the fabric. Then the pawl 'is again -same hole.

moved backward along over the high part 5 ofthe ratchet-disk and engages the shallow notch 6 therein, so that the pawl, as it is again moved forward, will not engage the ratchet e and move the fabric or quilt, but permits the needle to again descend the second time in the At the next backward movement of the pawl it rides over the unnotched part5 of the ratchet-disk and drops into the deep notch 7 ofthe controlling-disk, engaging also the ratchet-wheel e, which is moved the full stroke of the pawl, thus making a long feed, as described. After this the operation is again repeated, and two descents of the needle are made in one spot, a short feed is produced, and the needle is again made to descend twice in the same spot.

rIhe knot made in the stitch, as I have described, is not what might be accurately denominated a face-knot, but the loops Aof thread are so twisted or knotted together as to practically form aknotted or tied stitch. The thread-holder n, besides holding the severed end of the thread and preventing it from being drawn out of the eye of the needle, also serves to draw the knots tight.

I claim- 1. The sewing mechanism' composed of the eye-pointed needle and hook and means to operate them and the roller-feed located at one side of the sewing mechanism, combined with` the ratchet and pawl, and pawl-controlling disk, as described, adapted to operate the roller-feed interinittingly for a short distance and then for a long distance, leaving the feedwheels at rest at intervals during two descents of the needle, to operate substantially as and for the purpose set forth.

2. The sewing mechanism composed of the eye-pointed needle and hook and the feeding mechanism, combined with the thread-cutting device m, located below the cloth-plate, over which the loop of thread is drawn and severed between the material being sewed and the eye of the needle, substantially as described.

3. The combination, with the cloth-plate a4, the needle-bar and eye-pointed needle, of the thread-holder u, adapted to receive between its forked end the end of the thread projecting beyond the eye of the needle and hold the same until the needle again descends to form a succeeding stitch, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREEMAN N. COTTLE.

Witnesses Jos. P. LIvEnMoRE, L. F. CONNOR.

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